All - Constructed - 1920–1929
| Grotto Trail |
| Grubb-Sigmon-Weisiger House |
| Guardian Building |
| Guerneville Bridge |
| Gulf Building |
| Gung'l, John, House |
| Hacienda Arms Apartments |
| Hadland Fishing Camp |
| Haines, Elizabeth, House |
| Halfway Diner |
| Hamden Bank & Trust Building |
| Hamden Memorial Town Hall |
| Hamilton Hotel |
| Hampton Colored School |
| Hampton-Ellis Farm |
| Hamrick, E. B., Hall |
| Hancock Central High School |
| Hand County Courthouse and Jail |
| Handley, John, High School |
| Hanes, Robert M., House |
| Hanover Heights Neighborhood Historic District |
| Harding Tomb |
| Hardware Mutual Insurance Companies Building |
| Hariman Sanatorium |
| Harlow, Elmer, House |
| Harmon County Courthouse |
| Harper and McIntire Company Warehouse |
| Harris & Ewing Photographic Studio |
| Harrison Lake Patrol Cabin |
| Hart Building |
| Hartford Electric Light Company Maple Avenue Sub-Station |
| Harvard Square Subway Kiosk |
| Harvey Hotel |
| Harwood Foundation |
| Hassayampa River Bridge |
| Hastings High School |
| Hawthorne School |
| Hayden, A. W., House |
| Hayes-Kennedy-Rivoli Theater Building |
| Hayes River Fire Cache |
| Haywood, Dr. Hubert Benbury and Marguerite Manor, House |
| HCS Motor Car Company |
| Hearst Gymnasium for Women |
| Heathman Hotel |
| Heating Plant |
| Heck, Albert S., Mansion |
| Heidelberg Hotel |
| Henley Field Ball Park |
| Hennepin Theatre |
| Henry, Patrick, Hotel |
| Henry, R.H., Bridge |
| Hershberger Mountain Lookout |
| Hetch Hetchy Railroad Engine No.6 |
| Heurich-Parks House |
| Hickert, Henry Building |
| Hidden Canyon Trail |
| Higgins, Aldus Chapin, House |
| Higgins, E. H., House |
| Highland Hose House |
| Highland Park Tower |
| Highland Plaza Apartments |
| High Point Bending and Chair Company, Former |
| High Point Park Historic District |
| High Steel Bridge |
| Hillandale-Main Residence and Gatehouse |
| Hill, Clara, House |
| Hillcrest Apartment |
| Hillcrest Apartments |
| Hillside School |
| Hilzinger Block |
| Hitchcok, W.F., House |
| Hodgeman County Courthouse |
| Hoeft, P.H., State Park |
| Hoffman Barn |
| Hogg Building |
| Holland Tunnel |
| Hollywood Masonic Temple |
| Hollywood Plantation |
| Holmes, Samuel, House |
| Holt, Charles B., House |
| Holy Trinity Greek Orthodox Church |
| Holy Trinity Monastery |
| Homestead, The |
| Honey Creek School |
| Honolulu Academy of Arts |
| Hoodoo Ridge Lookout |
| Hoover, Lou Henry, House |
| Hope Rosenwald School |
| Hopewell School |
| Horner Houses |
| Hornet Lookout |
| Horn-Vincent-Russell Estate |
| Horse Barn |
| Horse Mesa Dam |
| Hotel Aldridge |
| Hotel Baker |
| Hotel Baxter |
| Hotel Bell |
| Hotel Chancellor |
| Hotel Charlotte |
Data from United States Park Service and Wikidata
